I was blocked by many registrars during this research. Blocking means that after 5 or 10 whois inquiries to a registrar on port 43, I stop receiving any whois details. NONE of the registrars state their rules on how many connections I can do on port 43 and how frequent these connections can be so I don’t get banned.

About Konstantinos Zournas

Konstantinos studied Computer Engineering and Computer Science in London and lives in Athens, Greece. He loves domains and building websites. He is online since 1995, learned about html in 1996 and got into domains in 2002. He started the OnlineDomain.com blog in 2012.